% This macro source file is from the four volume series % "TeX in Practice" by Stephan von Bechtolsheim, published % 1993 by Springer-Verlag, New York. % Copyright 1993 Stephan von Bechtolsheim. % No warranty or liability is assumed. % This macro may be copied freely if no fees other than % media cost or shipping charges are charged and as long % as this copyright and the following source code itself % is not changed. Please see the series for further information. % % Version: 1.0 % Date: May 1, 1993 % % % This source code is documented in 15.2.6, p. II-237. % Original source in file "fonts1.TEX", starting line 538. \wlog{L: "strleng.tip" ["fonts1.TEX," l. 538, p. II-237]}% % This file DOES belong to format "texip." \newcount\StringLengthResult \catcode`\@ = 11 \newbox\@StringLengthBoxA \newbox\@StringLengthBoxB \def\StringLength #1{% \setbox\@StringLengthBoxA = \hbox{\tt #1}% \setbox\@StringLengthBoxB = \hbox{\tt A}% \StringLengthResult = \wd\@StringLengthBoxA \divide\StringLengthResult by \wd\@StringLengthBoxB } \catcode`\@ = 12